Imperialism By ariperez Period: Jan 1, 1820 to Dec 31, 1920 Imperialism Jan 5, 1850 European trade with Africa becomes established Mar 3, 1857 East india Company collapses due to The Sepoy Rebellion Mar 3, 1884 German Chancellor Otto von Bismark called together the western powers Mar 3, 1884 14 countries were represented Mar 3, 1884 Berlin Conference convenes to discuss terms for African colonization Jul 7, 1898 Hawaii Mar 3, 1900 The boxer rebellion Mar 3, 1914 most of africa is under european control